Though I have a category set to public it does not appear on the front end (Live page) however it does appear on the back end (EDIT page).
This isnt nnecessarily a bug that can be "reproduced" however this page ( https://www.worldanvil.com/w/espen-wexley/c/atlas-principia-category ) should have a category called Major 12 Cities. On the back end, the category exists.
Hey, I can now see the category you reported missing in the Altas Principia category page, did you figure out what was causing this?